CONTENTS. 



CHAPTER I. 



PAGE 



THE THAMES I 



CHAPTER II. 



SPRINGS 21 



CHAPTER III. 



RAIN AND DEW 39 



CHAPTER IV. 



THE CRYSTALLISATION OF WATER : SNOW AND ICE . . 55 



CHAPTER V. 



EVAPORATION 66 



CHAPTER VI. 

 THE ATMOSPHERE 75 



